28 lines
689 B
C++
28 lines
689 B
C++
#include <mbgl/shader/linejoin_shader.hpp>
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#include <mbgl/shader/shaders.hpp>
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#include <mbgl/platform/gl.hpp>
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#include <cstdio>
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using namespace mbgl;
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LinejoinShader::LinejoinShader()
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: Shader(
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"linejoin",
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shaders[LINEJOIN_SHADER].vertex,
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shaders[LINEJOIN_SHADER].fragment
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) {
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if (!valid) {
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fprintf(stderr, "invalid line shader\n");
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return;
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}
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a_pos = glGetAttribLocation(program, "a_pos");
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}
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void LinejoinShader::bind(char *offset) {
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glEnableVertexAttribArray(a_pos);
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// Note: We're referring to the vertices in a line array, which are 8 bytes long!
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glVertexAttribPointer(a_pos, 2, GL_SHORT, false, 8, offset);
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}
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